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Finding the Fourth Proportional to 331,238.65, 456,956.49 and 195,179.71

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Solution

The fourth proportional to 331,238.65, 456,956.49 and 195,179.71 is: 269,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,238.65 : 456,956.49 = 195,179.71 : x
  2. Step 2: Convert to fraction form
    331,238.65/456,956.49 = 195,179.71/x
  3. Step 3: Cross multiply
    331,238.65x = 456,956.49 × 195,179.71
  4. Step 4: Simplify right side
    331,238.65x = 89,188,635,200.82
  5. Step 5: Solve for x
    x = 89,188,635,200.82/331,238.65
  6. Step 6: Final answer
    x = 269,257.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.